Doc said i'm anemic due to low iron. what should i do? lack energy. strength and have fatigue. this be from that?

This is serious: A man should not become iron deficient. First, make sure your physician has diagnosed you as being truly iron deficient and that his telling you 'your iron is low' actually means 'your hemoglobin is low' -- this generates misunderstandings. Unless you're a vegetarian, you've got a bleeding stomach ulcer or hookworm until proved otherwise. Get a proper workup.